My passport Elite 500 will not show up my Xbox360

My older Passport will work fine but the new one a purchased this week with smaller design want work. Any suggestions?

if it’s the drive that comes with the smartware, then it comes pre-formatted NTFS , and your xbox needs FAT32 format to work.

So, you need to connected this drive on a mac computer to format to ms dos FAT32, or use a formatting utility like “partition magic” to format the drive to fat32, then if there’s password assigned remove it, and it should work